trunk/modules/m_connect.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_connect.c: Connects to a remote IRC server.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id$
 */

#include "stdinc.h"
#include "client.h"
#include "ircd.h"
#include "irc_string.h"
#include "numeric.h"
#include "fdlist.h"
#include "s_bsd.h"
#include "conf.h"
#include "log.h"
#include "s_serv.h"
#include "send.h"
#include "parse.h"
#include "hash.h"
#include "modules.h"


/*
 * mo_connect - CONNECT command handler
 * 
 * Added by Jto 11 Feb 1989
 *
 * m_connect
 *      parv[0] = sender prefix
 *      parv[1] = servername
 *      parv[2] = port number
 *      parv[3] = remote server
 */
static void
mo_connect(struct Client *client_p, struct Client *source_p,
           int parc, char *parv[])
{
  int port;
  int tmpport;
  struct ConfItem *conf = NULL;
  struct AccessItem *aconf = NULL;
  const struct Client *target_p = NULL;

  if (EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
               me.name, source_p->name, "CONNECT");
    return;
  }

  if (parc > 3)
  {
    if (!HasOFlag(source_p, OPER_FLAG_REMOTE))
    {
      sendto_one(source_p, form_str(ERR_NOPRIVS),
                 me.name, source_p->name, "connect");
      return;
    }

    if (hunt_server(client_p, source_p, ":%s CONNECT %s %s :%s", 3,
                    parc, parv) != HUNTED_ISME)
      return;
  }

  if ((target_p = hash_find_server(parv[1])))
  {
    sendto_one(source_p,
               ":%s NOTICE %s :Connect: Server %s already exists from %s.",
               me.name, source_p->name, parv[1], target_p->from->name);
    return;
  }

  /*
   * try to find the name, then host, if both fail notify ops and bail
   */
  if ((conf = find_matching_name_conf(SERVER_TYPE,
                                      parv[1], NULL, NULL, 0)) != NULL)
    aconf = (struct AccessItem *)map_to_conf(conf);
  else if ((conf = find_matching_name_conf(SERVER_TYPE,
                                           NULL, NULL, parv[1], 0)) != NULL)
    aconf = (struct AccessItem *)map_to_conf(conf);
  
  if (conf == NULL || aconf == NULL)
  {
    sendto_one(source_p,
               ":%s NOTICE %s :Connect: Host %s not listed in ircd.conf",
               me.name, source_p->name, parv[1]);
    return;
  }

  /* Get port number from user, if given. If not specified,
   * use the default form configuration structure. If missing
   * from there, then use the precompiled default.
   */
  tmpport = port = aconf->port;

  if (parc > 2 && !EmptyString(parv[2]))
  {
    if ((port = atoi(parv[2])) <= 0)
    {
      sendto_one(source_p, ":%s NOTICE %s :Connect: Illegal port number",
                 me.name, source_p->name);
      return;
    }
  }
  else if (port <= 0 && (port = PORTNUM) <= 0)
  {
    sendto_one(source_p, ":%s NOTICE %s :Connect: missing port number",
               me.name, source_p->name);
    return;
  }

  if (find_servconn_in_progress(conf->name))
  {
    sendto_one(source_p, ":%s NOTICE %s :Connect: a connection to %s "
               "is already in progress.", me.name, source_p->name, conf->name);
    return;
  }

  /*
   * Notify all operators about remote connect requests
   */
  ilog(LOG_TYPE_IRCD, "CONNECT From %s : %s %s", 
       source_p->name, parv[1], parv[2] ? parv[2] : "");

  aconf->port = port;

  /* at this point we should be calling connect_server with a valid
   * C:line and a valid port in the C:line
   */
  if (serv_connect(aconf, source_p))
  {
    if (!ConfigServerHide.hide_server_ips && HasUMode(source_p, UMODE_ADMIN))
      sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s[%s].%d",
                 me.name, source_p->name, aconf->host,
                 conf->name, aconf->port);
    else
      sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s.%d",
                 me.name, source_p->name, conf->name, aconf->port);
  }
  else
  {
    sendto_one(source_p, ":%s NOTICE %s :*** Couldn't connect to %s.%d",
               me.name, source_p->name, conf->name, aconf->port);
  }

  /* client is either connecting with all the data it needs or has been
   * destroyed
   */
  aconf->port = tmpport;
}

/*
 * ms_connect - CONNECT command handler
 * 
 * Added by Jto 11 Feb 1989
 *
 * m_connect
 *      parv[0] = sender prefix
 *      parv[1] = servername
 *      parv[2] = port number
 *      parv[3] = remote server
 */
static void
ms_connect(struct Client *client_p, struct Client *source_p,
           int parc, char *parv[])
{
  int port;
  int tmpport;
  struct ConfItem *conf = NULL;
  struct AccessItem *aconf = NULL;
  const struct Client *target_p = NULL;

  if (hunt_server(client_p, source_p,
                  ":%s CONNECT %s %s :%s", 3, parc, parv) != HUNTED_ISME)
    return;

  if (EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
               me.name, source_p->name, "CONNECT");
    return;
  }

  if ((target_p = hash_find_server(parv[1])))
  {
    sendto_one(source_p,
               ":%s NOTICE %s :Connect: Server %s already exists from %s.",
               me.name, source_p->name, parv[1], target_p->from->name);
    return;
  }

  /*
   * try to find the name, then host, if both fail notify ops and bail
   */
  if ((conf = find_matching_name_conf(SERVER_TYPE,
                                      parv[1], NULL, NULL, 0)) != NULL)
    aconf = map_to_conf(conf);
  else if ((conf = find_matching_name_conf(SERVER_TYPE,
                                           NULL, NULL, parv[1], 0)) != NULL)
    aconf = map_to_conf(conf);

  if (conf == NULL || aconf == NULL)
  {
    sendto_one(source_p,
               ":%s NOTICE %s :Connect: Host %s not listed in ircd.conf",
               me.name, source_p->name, parv[1]);
    return;
  }

  /* Get port number from user, if given. If not specified,
   * use the default form configuration structure. If missing
   * from there, then use the precompiled default.
   */
  tmpport = port = aconf->port;

  if (parc > 2 && !EmptyString(parv[2]))
  {
    port = atoi(parv[2]);

    /* if someone sends port 0, and we have a config port.. use it */
    if (port == 0 && aconf->port)
      port = aconf->port;
    else if (port <= 0)
    {
      sendto_one(source_p, ":%s NOTICE %s :Connect: Illegal port number",
                 me.name, source_p->name);
      return;
    }
  }
  else if (port <= 0 && (port = PORTNUM) <= 0)
  {
    sendto_one(source_p, ":%s NOTICE %s :Connect: missing port number",
               me.name, source_p->name);
    return;
  }

  if (find_servconn_in_progress(conf->name))
  {
    sendto_one(source_p, ":%s NOTICE %s :Connect: a connection to %s "
               "is already in progress.", me.name, source_p->name, conf->name);
    return;
  }

  /*
   * Notify all operators about remote connect requests
   */
  sendto_wallops_flags(UMODE_WALLOP, &me, "Remote CONNECT %s %d from %s",
                       parv[1], port, source_p->name);
  sendto_server(NULL, NOCAPS, CAP_TS6,
                ":%s WALLOPS :Remote CONNECT %s %d from %s",
                me.name, parv[1], port, source_p->name);
  sendto_server(NULL, CAP_TS6, NOCAPS,
                ":%s WALLOPS :Remote CONNECT %s %d from %s",
                me.id, parv[1], port, source_p->name);

  ilog(LOG_TYPE_IRCD, "CONNECT From %s : %s %d", 
       source_p->name, parv[1], port);

  aconf->port = port;

  /*
   * At this point we should be calling connect_server with a valid
   * C:line and a valid port in the C:line
   */
  if (serv_connect(aconf, source_p))
    sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s.%d",
               me.name, source_p->name, conf->name, aconf->port);
  else
    sendto_one(source_p, ":%s NOTICE %s :*** Couldn't connect to %s.%d",
               me.name, source_p->name, conf->name, aconf->port);
  /*
   * Client is either connecting with all the data it needs or has been
   * destroyed
   */
  aconf->port = tmpport;
}

static struct Message connect_msgtab = {
  "CONNECT", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_not_oper, ms_connect, m_ignore, mo_connect, m_ignore }
};

static void
module_init(void)
{
  mod_add_cmd(&connect_msgtab);
}

static void
module_exit(void)
{
  mod_del_cmd(&connect_msgtab);
}

struct module module_entry = {
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	1474
Committed:	Sun Jul 22 14:44:07 2012 UTC (14 years ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid-8/modules/m_connect.c*
File size:	9022 byte(s)
Log Message:	- removed &localchannels
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* m_connect.c: Connects to a remote IRC server.
4			*
5			* Copyright (C) 2002 by the past and present ircd coders, and others.
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26			#include "client.h"
27			#include "ircd.h"
28			#include "irc_string.h"
29			#include "numeric.h"
30			#include "fdlist.h"
31			#include "s_bsd.h"
32	michael	1309	#include "conf.h"
33			#include "log.h"
34	adx	30	#include "s_serv.h"
35			#include "send.h"
36			#include "parse.h"
37			#include "hash.h"
38			#include "modules.h"
39
40
41			/*
42			* mo_connect - CONNECT command handler
43			*
44			* Added by Jto 11 Feb 1989
45			*
46			* m_connect
47			* parv[0] = sender prefix
48			* parv[1] = servername
49			* parv[2] = port number
50			* parv[3] = remote server
51			*/
52			static void
53	michael	971	mo_connect(struct Client client_p, struct Client source_p,
54			int parc, char *parv[])
55	adx	30	{
56			int port;
57			int tmpport;
58			struct ConfItem *conf = NULL;
59			struct AccessItem *aconf = NULL;
60	michael	971	const struct Client *target_p = NULL;
61	adx	30
62	michael	971	if (EmptyString(parv[1]))
63	adx	30	{
64	michael	971	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
65			me.name, source_p->name, "CONNECT");
66	adx	30	return;
67			}
68
69	michael	971	if (parc > 3)
70			{
71	michael	1219	if (!HasOFlag(source_p, OPER_FLAG_REMOTE))
72	michael	971	{
73			sendto_one(source_p, form_str(ERR_NOPRIVS),
74			me.name, source_p->name, "connect");
75			return;
76			}
77	adx	30
78	michael	971	if (hunt_server(client_p, source_p, ":%s CONNECT %s %s :%s", 3,
79			parc, parv) != HUNTED_ISME)
80			return;
81	adx	30	}
82
83	michael	1169	if ((target_p = hash_find_server(parv[1])))
84	adx	30	{
85			sendto_one(source_p,
86			":%s NOTICE %s :Connect: Server %s already exists from %s.",
87			me.name, source_p->name, parv[1], target_p->from->name);
88			return;
89			}
90
91			/*
92			* try to find the name, then host, if both fail notify ops and bail
93			*/
94			if ((conf = find_matching_name_conf(SERVER_TYPE,
95			parv[1], NULL, NULL, 0)) != NULL)
96			aconf = (struct AccessItem *)map_to_conf(conf);
97			else if ((conf = find_matching_name_conf(SERVER_TYPE,
98			NULL, NULL, parv[1], 0)) != NULL)
99			aconf = (struct AccessItem *)map_to_conf(conf);
100
101	michael	971	if (conf == NULL \|\| aconf == NULL)
102	adx	30	{
103			sendto_one(source_p,
104			":%s NOTICE %s :Connect: Host %s not listed in ircd.conf",
105			me.name, source_p->name, parv[1]);
106			return;
107			}
108	michael	971
109	adx	30	/* Get port number from user, if given. If not specified,
110			* use the default form configuration structure. If missing
111			* from there, then use the precompiled default.
112			*/
113			tmpport = port = aconf->port;
114
115			if (parc > 2 && !EmptyString(parv[2]))
116			{
117			if ((port = atoi(parv[2])) <= 0)
118			{
119			sendto_one(source_p, ":%s NOTICE %s :Connect: Illegal port number",
120			me.name, source_p->name);
121			return;
122			}
123			}
124			else if (port <= 0 && (port = PORTNUM) <= 0)
125			{
126			sendto_one(source_p, ":%s NOTICE %s :Connect: missing port number",
127			me.name, source_p->name);
128			return;
129			}
130
131			if (find_servconn_in_progress(conf->name))
132			{
133			sendto_one(source_p, ":%s NOTICE %s :Connect: a connection to %s "
134			"is already in progress.", me.name, source_p->name, conf->name);
135			return;
136			}
137
138			/*
139			* Notify all operators about remote connect requests
140			*/
141	michael	1247	ilog(LOG_TYPE_IRCD, "CONNECT From %s : %s %s",
142	adx	30	source_p->name, parv[1], parv[2] ? parv[2] : "");
143
144			aconf->port = port;
145
146			/* at this point we should be calling connect_server with a valid
147			* C:line and a valid port in the C:line
148			*/
149			if (serv_connect(aconf, source_p))
150			{
151	michael	1219	if (!ConfigServerHide.hide_server_ips && HasUMode(source_p, UMODE_ADMIN))
152	adx	30	sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s[%s].%d",
153			me.name, source_p->name, aconf->host,
154			conf->name, aconf->port);
155			else
156			sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s.%d",
157			me.name, source_p->name, conf->name, aconf->port);
158			}
159			else
160			{
161			sendto_one(source_p, ":%s NOTICE %s :*** Couldn't connect to %s.%d",
162			me.name, source_p->name, conf->name, aconf->port);
163			}
164
165			/* client is either connecting with all the data it needs or has been
166			* destroyed
167			*/
168			aconf->port = tmpport;
169			}
170
171			/*
172			* ms_connect - CONNECT command handler
173			*
174			* Added by Jto 11 Feb 1989
175			*
176			* m_connect
177			* parv[0] = sender prefix
178			* parv[1] = servername
179			* parv[2] = port number
180			* parv[3] = remote server
181			*/
182			static void
183			ms_connect(struct Client client_p, struct Client source_p,
184			int parc, char *parv[])
185			{
186			int port;
187			int tmpport;
188			struct ConfItem *conf = NULL;
189			struct AccessItem *aconf = NULL;
190	michael	971	const struct Client *target_p = NULL;
191	adx	30
192			if (hunt_server(client_p, source_p,
193			":%s CONNECT %s %s :%s", 3, parc, parv) != HUNTED_ISME)
194			return;
195
196	michael	1413	if (EmptyString(parv[1]))
197	adx	30	{
198			sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
199			me.name, source_p->name, "CONNECT");
200			return;
201			}
202
203	michael	1169	if ((target_p = hash_find_server(parv[1])))
204	adx	30	{
205			sendto_one(source_p,
206			":%s NOTICE %s :Connect: Server %s already exists from %s.",
207			me.name, source_p->name, parv[1], target_p->from->name);
208			return;
209			}
210
211			/*
212			* try to find the name, then host, if both fail notify ops and bail
213			*/
214			if ((conf = find_matching_name_conf(SERVER_TYPE,
215			parv[1], NULL, NULL, 0)) != NULL)
216	michael	971	aconf = map_to_conf(conf);
217	adx	30	else if ((conf = find_matching_name_conf(SERVER_TYPE,
218			NULL, NULL, parv[1], 0)) != NULL)
219	michael	971	aconf = map_to_conf(conf);
220	adx	30
221	michael	971	if (conf == NULL \|\| aconf == NULL)
222	adx	30	{
223			sendto_one(source_p,
224			":%s NOTICE %s :Connect: Host %s not listed in ircd.conf",
225			me.name, source_p->name, parv[1]);
226			return;
227			}
228
229			/* Get port number from user, if given. If not specified,
230			* use the default form configuration structure. If missing
231			* from there, then use the precompiled default.
232			*/
233			tmpport = port = aconf->port;
234
235			if (parc > 2 && !EmptyString(parv[2]))
236			{
237			port = atoi(parv[2]);
238
239			/* if someone sends port 0, and we have a config port.. use it */
240			if (port == 0 && aconf->port)
241			port = aconf->port;
242			else if (port <= 0)
243			{
244			sendto_one(source_p, ":%s NOTICE %s :Connect: Illegal port number",
245			me.name, source_p->name);
246			return;
247			}
248			}
249			else if (port <= 0 && (port = PORTNUM) <= 0)
250			{
251			sendto_one(source_p, ":%s NOTICE %s :Connect: missing port number",
252			me.name, source_p->name);
253			return;
254			}
255
256			if (find_servconn_in_progress(conf->name))
257			{
258			sendto_one(source_p, ":%s NOTICE %s :Connect: a connection to %s "
259			"is already in progress.", me.name, source_p->name, conf->name);
260			return;
261			}
262
263			/*
264			* Notify all operators about remote connect requests
265			*/
266			sendto_wallops_flags(UMODE_WALLOP, &me, "Remote CONNECT %s %d from %s",
267			parv[1], port, source_p->name);
268	michael	1474	sendto_server(NULL, NOCAPS, CAP_TS6,
269	adx	30	":%s WALLOPS :Remote CONNECT %s %d from %s",
270			me.name, parv[1], port, source_p->name);
271	michael	1474	sendto_server(NULL, CAP_TS6, NOCAPS,
272	michael	1463	":%s WALLOPS :Remote CONNECT %s %d from %s",
273			me.id, parv[1], port, source_p->name);
274	adx	30
275	michael	1247	ilog(LOG_TYPE_IRCD, "CONNECT From %s : %s %d",
276	adx	30	source_p->name, parv[1], port);
277
278			aconf->port = port;
279
280	michael	885	/*
281			* At this point we should be calling connect_server with a valid
282	adx	30	* C:line and a valid port in the C:line
283			*/
284			if (serv_connect(aconf, source_p))
285			sendto_one(source_p, ":%s NOTICE %s :*** Connecting to %s.%d",
286			me.name, source_p->name, conf->name, aconf->port);
287			else
288			sendto_one(source_p, ":%s NOTICE %s :*** Couldn't connect to %s.%d",
289			me.name, source_p->name, conf->name, aconf->port);
290	michael	885	/*
291			* Client is either connecting with all the data it needs or has been
292	adx	30	* destroyed
293			*/
294			aconf->port = tmpport;
295			}
296	michael	1230
297			static struct Message connect_msgtab = {
298			"CONNECT", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
299			{ m_unregistered, m_not_oper, ms_connect, m_ignore, mo_connect, m_ignore }
300			};
301
302			static void
303			module_init(void)
304			{
305			mod_add_cmd(&connect_msgtab);
306			}
307
308			static void
309			module_exit(void)
310			{
311			mod_del_cmd(&connect_msgtab);
312			}
313
314			struct module module_entry = {
315			.node = { NULL, NULL, NULL },
316			.name = NULL,
317			.version = "$Revision$",
318			.handle = NULL,
319			.modinit = module_init,
320			.modexit = module_exit,
321			.flags = 0
322			};